A couple of the photos you posted looked very similar to failures I was having. And I had the same issue where I’d have good prints after changing the FEP film, and then I’d start having failures. Always closest to the hinge of the vat.
The symptoms were consistent with the FEP not always separating from the print. I ended up increasing PM reset position to 68 and that solved the problem for me. (I’m using the easy level build plate and the advanced acrylic vat plate). It may be overkill, but it worked. Even the fact that I had a few good prints after replacing the FEP is consistent, assuming the FEP stretches or loosens slightly with use.
You may have other issues at work, but give that a shot. I’d try 65 first, before going higher. I don’t know what the mechanical limit is to how far you can tilt the vat. Or try keeping PM reset the same and moving the model away from the hinge if you have room for it and have supports to adequately counter the increased peel force.